Math questions…?

I have 2 math problems, that I have gotten incorrect(or missed a step somewhere) and I hope someone can help. Please show the steps if you know how to do it, thanks!

Factor 2x^3-6x

(2x^3 is 2x cubed, i am using the^ to indicate powers)

and the second is.

Solve the equation (2x-1)^2=18

Thanks!

Top 2 Answers

A few days ago

Anonymous

Favorite Answer

2x(x^2-3)

x=(((square root of 18)+1)/2)

(im not 100% sure about the second one)

A few days ago

Anonymous

1: 2x^3-6x=2x(x^2-3)

2: (2x-1)^2=18

2x-1=rt(18)=3rt(2)

2x=1+3rt(2)

x=(1+3rt(2))/2

Note, the 3rt(2) is strictly speaking plus or minus, so dont forget it!!

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Math questions…?

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